Trusted by millions of Kenyans
Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Water in a refrigerator cooled at a constant rate of 25% per hour. If it's temperature was 40°C originally, what was its temperature after 3...

Water in a refrigerator cooled at a constant rate of 25% per hour. If it's temperature was 40°C originally, what was its temperature after 3 hours?

Answers


Dana
After the first hour the temperature will be
75% of 40°C = 30°C
After the second hour, the temperature will be
75% of 30°C = 22.5°C
After the third hour, the temperature will be
75% of 22.5°C = 16.875°C
Dana05 answered the question on October 16, 2019 at 13:08

Answer Attachments

Exams With Marking Schemes

Related Questions